mirror of https://github.com/node-red/node-red.git
136 lines
4.2 KiB
JavaScript
136 lines
4.2 KiB
JavaScript
/**
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* Copyright 2013 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var RED = require(process.env.NODE_RED_HOME+"/red/red");
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var connectionPool = require("./lib/mqttConnectionPool");
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var util = require("util");
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function MQTTBrokerNode(n) {
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RED.nodes.createNode(this,n);
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this.broker = n.broker;
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this.port = n.port;
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this.clientid = n.clientid;
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var credentials = RED.nodes.getCredentials(n.id);
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if (credentials) {
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this.username = credentials.user;
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this.password = credentials.password;
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}
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}
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RED.nodes.registerType("mqtt-broker",MQTTBrokerNode);
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var querystring = require('querystring');
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RED.httpAdmin.get('/mqtt-broker/:id',function(req,res) {
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var credentials = RED.nodes.getCredentials(req.params.id);
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if (credentials) {
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res.send(JSON.stringify({user:credentials.user,hasPassword:(credentials.password&&credentials.password!="")}));
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} else {
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res.send(JSON.stringify({}));
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}
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});
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RED.httpAdmin.delete('/mqtt-broker/:id',function(req,res) {
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RED.nodes.deleteCredentials(req.params.id);
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res.send(200);
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});
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RED.httpAdmin.post('/mqtt-broker/:id',function(req,res) {
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var body = "";
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req.on('data', function(chunk) {
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body+=chunk;
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});
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req.on('end', function(){
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var newCreds = querystring.parse(body);
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var credentials = RED.nodes.getCredentials(req.params.id)||{};
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if (newCreds.user == null || newCreds.user == "") {
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delete credentials.user;
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} else {
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credentials.user = newCreds.user;
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}
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if (newCreds.password == "") {
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delete credentials.password;
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} else {
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credentials.password = newCreds.password||credentials.password;
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}
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RED.nodes.addCredentials(req.params.id,credentials);
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res.send(200);
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});
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});
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function MQTTInNode(n) {
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RED.nodes.createNode(this,n);
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this.topic = n.topic;
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this.broker = n.broker;
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this.brokerConfig = RED.nodes.getNode(this.broker);
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if (this.brokerConfig) {
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this.client = connectionPool.get(this.brokerConfig.broker,this.brokerConfig.port,this.brokerConfig.clientid,this.brokerConfig.username,this.brokerConfig.password);
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var node = this;
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this.client.subscribe(this.topic,2,function(topic,payload,qos,retain) {
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var msg = {topic:topic,payload:payload,qos:qos,retain:retain};
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if ((node.brokerConfig.broker == "localhost")||(node.brokerConfig.broker == "127.0.0.1")) {
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msg._topic = topic;
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}
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node.send(msg);
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});
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this.client.connect();
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} else {
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this.error("missing broker configuration");
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}
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}
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RED.nodes.registerType("mqtt in",MQTTInNode);
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MQTTInNode.prototype.close = function() {
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if (this.client) {
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this.client.disconnect();
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}
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}
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function MQTTOutNode(n) {
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RED.nodes.createNode(this,n);
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this.topic = n.topic;
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this.broker = n.broker;
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this.brokerConfig = RED.nodes.getNode(this.broker);
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if (this.brokerConfig) {
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this.client = connectionPool.get(this.brokerConfig.broker,this.brokerConfig.port,this.brokerConfig.clientid,this.brokerConfig.username,this.brokerConfig.password);
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this.on("input",function(msg) {
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if (msg != null) {
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if (this.topic) {
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msg.topic = this.topic;
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}
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this.client.publish(msg);
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}
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});
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this.client.connect();
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} else {
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this.error("missing broker configuration");
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}
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}
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RED.nodes.registerType("mqtt out",MQTTOutNode);
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MQTTOutNode.prototype.close = function() {
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if (this.client) {
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this.client.disconnect();
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}
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}
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